#define HTTP_STATUS_CODES(XX)\
  XX(100, "Continue");\
  XX(101, "Switching Protocols");\
  XX(102, "Processing");\
  XX(200, "OK");\
  XX(201, "Created");\
  XX(202, "Accepted");\
  XX(203, "Non-Authoritative Information");\
  XX(204, "No Content");\
  XX(205, "Reset Content");\
  XX(206, "Partial Content");\
  XX(207, "Multi-Status");\
  XX(208, "Already Reported");\
  XX(226, "IM Used");\
  XX(300, "Multiple Choices");\
  XX(301, "Moved Permanently");\
  XX(302, "Found");\
  XX(303, "See Other");\
  XX(304, "Not Modified");\
  XX(305, "Use Proxy");\
  XX(306, "Reserved");\
  XX(307, "Temporary Redirect");\
  XX(308, "Permanent Redirect");\
  XX(400, "Bad Request");\
  XX(401, "Unauthorized");\
  XX(402, "Payment Required");\
  XX(403, "Forbidden");\
  XX(404, "Not Found");\
  XX(405, "Method Not Allowed");\
  XX(406, "Not Acceptable");\
  XX(407, "Proxy Authentication Required");\
  XX(408, "Request Timeout");\
  XX(409, "Conflict");\
  XX(410, "Gone");\
  XX(411, "Length Required");\
  XX(412, "Precondition Failed");\
  XX(413, "Request Entity Too Large");\
  XX(414, "Request-URI Too Long");\
  XX(415, "Unsupported Media Type");\
  XX(416, "Requested Range Not Satisfiable");\
  XX(417, "Expectation Failed");\
  XX(422, "Unprocessable Entity");\
  XX(423, "Locked");\
  XX(424, "Failed Dependency");\
  XX(425, "Unassigned");\
  XX(426, "Upgrade Required");\
  XX(427, "Unassigned");\
  XX(428, "Precondition Required");\
  XX(429, "Too Many Requests");\
  XX(430, "Unassigned");\
  XX(431, "Request Header Fields Too Large");\
  XX(500, "Internal Server Error");\
  XX(501, "Not Implemented");\
  XX(502, "Bad Gateway");\
  XX(503, "Service Unavailable");\
  XX(504, "Gateway Timeout");\
  XX(505, "HTTP Version Not Supported");\
  XX(506, "Variant Also Negotiates (Experimental)");\
  XX(507, "Insufficient Storage");\
  XX(508, "Loop Detected");\
  XX(509, "Unassigned");\
  XX(510, "Not Extended");\
  XX(511, "Network Authentication Required");\
// end define